0 a caustic chemical used in industrial processes such as soap and paper production, and in powerful cleaning substances -- 苛性钠，烧碱
Pollution in my own area is usually caused by caustic soda, which is used by many industries.
One of the first stages—it has probably changed now, because this was 15 years ago—was the placing or dropping of sheets of wood pulp into a caustic soda bath.
Rather than give up caustic soda and synthetic dye, dyers ignored the bans and continued to use both items surreptitiously.
Women responded by cutting prices and adopting new technologies (caustic soda and synthetic indigo) to reduce production costs.
In order to appreciate the significance of caustic soda, it is important to understand the dyeing process.
The most far-reaching initiative was the incorporation of new technologies, caustic soda and synthetic dyes, which had a dramatic impact on the dyeing industry.
In addition to allowing dyers to circumvent the obstacles to obtaining quality ingredients, caustic soda and synthetic dye helped them to increase the volume of production.
Caustic soda was also an important addition to the dyeing process because the quality of the available indigo had declined, and it had become increasingly difficult to get ashes.
